Home / 31,412,087.40-47,118,566.30-20,697,975.40

Finding the Fourth Proportional to 31,412,087.40, 47,118,566.30 and 20,697,975.40

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Solution

The fourth proportional to 31,412,087.40, 47,118,566.30 and 20,697,975.40 is: 31,047,249.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,412,087.40 : 47,118,566.30 = 20,697,975.40 : x
  2. Step 2: Convert to fraction form
    31,412,087.40/47,118,566.30 = 20,697,975.40/x
  3. Step 3: Cross multiply
    31,412,087.40x = 47,118,566.30 × 20,697,975.40
  4. Step 4: Simplify right side
    31,412,087.40x = 975,258,926,160,668.88
  5. Step 5: Solve for x
    x = 975,258,926,160,668.88/31,412,087.40
  6. Step 6: Final answer
    x = 31,047,249.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.